修复一些错误并更新README

Parsing/Analyzer.cs

@@ -3,7 +3,9 @@ using System.Collections;
 
 namespace Flee.Parsing
 {
-    [Obsolete("Creates a new parse tree analyzer.")]
+    /// <summary>
+    /// 创建新的解析树分析器
+    /// </summary>
     internal class Analyzer
     {
         public Analyzer()

Parsing/Parser.cs

@@ -5,8 +5,9 @@ using System.Text;
 
 namespace Flee.Parsing
 {
-
-    [Obsolete(" A base parser class. This class provides the standard parser interface, as well as token handling.")]
+    /// <summary>
+    /// 基础解析器类。此类提供标准解析器接口以及令牌处理功能
+    /// </summary>
     internal abstract class Parser
     {
         private bool _initialized;